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Weather Forecast Office Greenville-Spartanburg, SC

Southeast River Forecast Center

Hydrograph

River at a Glance

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NOTE: Forecasts are not available for the West Branch Rocky River NC below mouth of South Prong River. Only observed stages are available for this point.

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Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 27 Moderate Flood Stage: 24 Flood Stage: 19 Action Stage: 12.5 Low Stage (in feet): 0 Historic Crests (1) 15.37 ft on 08/27/2008 (2) 15.08 ft on 06/28/2013 (3) 14.84 ft on 12/30/2015 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 14.84 ft on 12/30/2015 (2) 12.70 ft on 04/20/2015 (3) 10.82 ft on 03/07/2014 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records Currently none available. For more information on your flood risk go to www.floodsmart.gov. Show FEMA's National Flood Hazard Layers FEMA's National Flood Hazard Layers not showing? Why aren't the FEMA National Flood Hazard Layers showing on the ESRI Map? Possible reasons: There are no FEMA National Flood Hazard Layers for the location which you are viewing on ESRI Maps. The FEMA Web Mapping Service (WMS) is down. Note: Your zoom level may have changed. ESRI's zoom levels must be between 14 and 16 to show National Flood Hazard layers.

Zoom Level:14 Legend FEMA Layer Gauge Location Disclaimer Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.

Flood Impacts & Photos

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31	BUILDINGS NEAR THE RIVER SOUTH OF THE CONFLUENCE OF THE SOUTH BRANCH AND WEST BRANCH OF ROCKY RIVER WILL BEGIN TO FLOOD. THIS IS LIKELY UNREACHABLE AS 31 FEET IS DOUBLE THE HEIGHT OF THE RECORD FLOOD.
27	WASTE TREATMENT PLANT NEAR GAGE WILL BE EFFECTED. THIS IS PROBABLY UNREACHABLE AS THE RECORD FLOOD IS 15.4 FEET.
19	HOMES ON LYNX DEN COURT AND COPELAND WAY NEAR THE RIVER WILL HAVE WATER IN THEM.
16.5	HOMES BETWEEN RIVER FORD DRIVE AND SHEARER ROAD NEAR THE RIVER WILL BE SURROUNDED BY WATER.
15	RECORD FLOOD LEVEL. SOME HOMES BETWEEN RIVER FORD DRIVE AND SHEARER ROAD ON THE NORTHEAST SIDE OF THE RIVER WILL BEGIN TO FLOOD. FLOODING DOWNSTREAM IN CABURRUS COUNTY IN HARRISBURG WILL BEGIN AND POPLAR TENT ROAD NEAR COX MILL ROAD WILL BE FLOODED. IBFN7 WILL CREST 8 TO 12 HOURS LATER AND LAST FEW TIMES 8-10 FT HIGHER THAN CREST AT WBRN7.. CODN7 WAS 12.23
13.4	A CREST OF 13.4 HAS RESULTED IN THE RIVER TO RISE TO THE BOTTOM OF THE POPLAR TENT ROAD BRIDGE AROUND 8 HOURS AFTER THE CREST HERE. CALL CONCORD EMA FOR UP TO DATE INFO.
13	THE RIVER WILL START TO FLOOD THE YARDS OF HOMES NEAR THE RIVER BETWEEN ROCKY FORD DRIVE AND SHEARER ROAD ...ESPECIALLY NEAR LYNX DEN COURT AND COPELAND WAY.
12	LOW AREAS ALONG POPLAR TENT ROAD AT COX MILL ROAD WILL LIKELY BEGIN TO FLOOD.
11	RIVER IS LIKELY AROUND 2 FT BELOW POPLAR TENT ROAD AT COX MILL ROAD.
10	WATER WILL APPROACH COX MILL ROAD NEAR POPLAR TENT RD.
9	A CREST OF AROUND 9.5 FEET HAS OCCURRED 10 TIMES SINCE 1 OCT 2004. THE AVERAGE DOWNSTREAM CREST AT IBFN7 HAS BEEN 13.9 FT (FS 16 FT). HOWEVER THAT VARIES DEPENDING ON WHERE THE RAIN FALLS.. NORTHERN HALF OR WIDE SPREAD.
2.5	A STEADY RAIN OF 2.5 INCHES IN A 12 HOUR PERIOD WILL CAUSE THE RIVER TO RISE 5 FT. SITE SPECIFIC MODEL DID A GOOD JOB WITH RIVER LEVEL FCST.
1.6	1.6 INCH IN 3 HOUR PERIOD WILL CAUSE RIVER TO RISE 10 TO 11 FT.

About This Location

Latitude: 35.467778° N, Longitude: 80.790278° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 19 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps Vertical Datum Elevation (gauge height = 0) Elevation (gauge height = flood stage) Elevation information source NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks Other Not Available Not Available   Current/Historical Observations: U.S. Geological Survey (USGS) Data and Site Info for mouth of South Prong River

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Southeast River Forecast Center SERFC Ensemble River Forecasts Lower Mississippi River Forecast Center LMRFC Ensemble River Forecasts Hourly Precipitation Snow Information

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